THE MITTLER REBBE"This treatise speaks about
the matter of the G-dly unity in every particular part of the
Seder Hishtalshelut of the ten Sefirot of the four worlds of
Atzilut, Briyah, Yetzirah and Asiyah. It is a
summary of everything that is possible for a person to bring close to
his intellect in a comprehension that is grasped within the brain and
heart." (Introduction to Shaar HaYichud)

THE REBBE RAYATZ“In former generations young
men were not admitted to hear maamarim being delivered by the
Rebbe of their generation. They first had to be familiar at least
with the Seder Hishtalshelus, at least to know all of its
stations. This is what the Mitteler Rebbe's Shaar HaYichud
is all about -- it explains the nature of
hisbonenus
and also the themes upon which one should meditate.”
(Likkutei Dibburim)

THE LUBAVITCHER REBBE“My grandfather said that
the Mittler Rebbe wrote specific
maamarim and a special book for every different kind of maskil
and oveid in the chassidic community. Shaar Hayichud and
Shaarei Ora, however, are general, written for all chassidim.
Shaar Hayichud is the key to the teachings of Chassidus; Shaarei
Ora is the alef-beit of Chassidus.”(Hayom Yom)

THE GATE OF UNITY

THE GATE OF UNITY

SHAAR HAYICHUDThe following chapters are available in
either .PDF or .DOC formats:

ONE
Within which is explained the three faculties of the mind, Chochmah, Binah and Daat. Also explained in this chapter is the methodology of Hitbonenut contemplation.(9 pages)Read Online |
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TWO
This chapter explains the faculty of Tvunah, and how it is born of Hitbonenut contemplation. (6 pages)Read Online |
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THREE
This chapter is a recap of the previous two chapters, and gives insight into how to properly approach Hitbonenut contemplation. (5 pages)Read Online |
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FOUR
This chapter discusses whether the Hitbonenut contemplation should be done in a general manner, or in a particular manner specifically. (6 pages)Read Online |
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FIVE
This chapter explains how sublimation to G-d is born specifically from Hitbonenut contemplation, and according to ones grasp of the concepts. (4 pages)Read Online |
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SIX
This chapter explains the various levels of love and fear, which are aroused only through Hitbonenut contemplation. (11 pages)Read Online |
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SEVEN
This chapter explains the general point of the comprehension of the Seder Hishtalshelut (The Chaining Down of the Worlds), and gives a general synopsis of the entire chaining down. (7 pages)Read Online |
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EIGHT
This chapter is a continuation of the previous chapter. It includes an explanation of the general unification of the chaining down of the worlds (Seder Hishtalshelut). (7 pages)Read Online |
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NINE
This chapter explains how G-d remains completely unchanged and unaffected by the chaining down of the worlds, and the changes that take place within the world. (5 pages)Read Online |
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TEN
This chapter explains the singularity of the Essence of G-d, and the three general levels which precede Tzimtzum. (7 pages)Read Online |
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ELEVEN
This chapter explains the analogies given in the previous chapter, regarding the Singularity of G-d, and the three general levels which precede Tzimtzum. (6 pages)Read Online |
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TWELVE
This chapter begins to explain the concept of Tzimtzum, and the Reshimu (Impression) which remained afterwards. (4 pages)Read Online |
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THIRTEEN
This chapter explains the analogies given in the previous chapter regarding Tzimtzum and Reshimu. (9 pages)Read Online |
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FOURTEEN
This chapter begins to explain the concept of the Kav V'Chut - the Line and Thread which is drawn from the aspect of the Reshimu - Impression. (5 pages)Read Online |
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FIFTEEN
This chapter explains how the Kav - the Line which is drawn from the aspect of the Reshimu - Impression, is bound with the Essence of the Infinite Light. (7 pages)Read Online |
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SIXTEEN
This chapter explains the aspect of Igullim - Circles, which are drawn from the Kav - the Line. This chapter also explains the difference between the simple desire which preceded the Tzimtzum, and the desire which follows the Tzimzum. (4 pages)Read Online |
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SEVENTEEN
This chapter explains the difference between the sefirotic scheme of Igullim - Circles, and that of Yosher - Upright. This chapter also explains the aspect of the Primal Desire - Ratzon Kadoom for Creation. (8 pages)Read Online |
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EIGHTEEN
This chapter continues to explain the Primal Desire - Ratzon Kadoom, and also explains the aspect of the "Desire for the Desire - Ratzon L'Ratzon" of Adam Kadmon, and how it is brought into existence from the aspect of the Primal Desire.(6 pages)Read Online |
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NINETEEN
This chapter explains the concept of "the revelation of the concealed", and how the world of Atzilut - Emanation is emanated into revelation, from the concealment of Adam Kadmon.(6 pages)Read Online |
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TWENTY ONE
This chapter explains the divisions of the sefirot of Tikkun - Rectification in three lines, right, left and middle, and begins to explain the concept of their inter-inclusions.(7 pages)Read Online |
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Appendix

TWENTY TWO
This chapter explains the various types of division and interinclusion of the sefirot of Tikkun - Rectification.(9 pages)Read Online |
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TWENTY THREE
This chapter begins to explain Keter of the world of Atzilut - Emanation. That is, Atik Yomin and Arich Anpin, Pleasure and Desire.(5 pages)Read Online |
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TWENTY FOUR
This chapter continues to explain the particulars of Keter of the world of Atzilut - Emanation, (Atik Yomin and Arich Anpin), and the analogue of all that has been said in the previous chapter.(6 pages)Read Online |
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TWENTY FIVE
This chapter explains the enclothement of Arich Anpin into Abba (Chochmah) and Imma (Binah) of the world of Atzilut - Emanation.(8 pages)Read Online |
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TWENTY SIX
This chapter explains the ten sefirot of Abba (Chochmah) and Imma (Binah), and the three levels of the intellectual sefirot of the world of Atzilut - Emanation.(11 pages)Read Online |
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TWENTY EIGHT
This chapter continues to explain the concept of Lights - Orot and Vessels - Kelim, Encompassing Lights - Orot Makifim and Pervading Lights - Orot Pnimiyeem of the world of Atzilut, and explains the analogies of the previous chapter.(8 pages)Read Online |
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TWENTY NINE
This chapter explains the source of the Vessels - Kelim, the "Simple Primal Matter - Chomer Pashoot, The Potential Power to Limit - Koach HaGvool and Actual Limitation - Gvool B'Poel. It also explains how even the external Vessels of world of Atzilut, are literally bound with the Essence of G-d.(5 pages)Read Online |
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THIRTY
This chapter returns to the explanation of the particulars of the Vessels - Kelim, and their internal, intermediate and external aspects. Also explained is the investment of the Lights - Orot within the Vessels - Kelim, and the "growth" of the vessels in proportion to the investment of Light.(18 pages)Read Online |
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THIRTY ONE
The two aspects of the inter-inclusion of opposites, in the Lights - Orot and in the Vessels - Kelim, and a continued explanation of how the ultimate purpose is the investment of the lights within the vessels.(10 pages)Read Online |
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THIRTY TWO
The explanation of how the "Heart", i.e. Zeir Anpin, which are the Emotional sefirot of the world of Atzilut - Emanation, is totally one with the Essence of the Infinite Light which preceded Tzimtzum. Also explained at length in this chapter are the aspects of the Thirty-Two Pathways and the Fifty Gates of Binah.(11 pages)Read Online |
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THIRTY THREE
In continuation of the previous chapter, this chapter recaps the entire chaining down (Hishtalshelut) from the Essence of the Infinite Light which preceded the Tzimtzum until the externality of Zeir Anpin (the heartfelt emotions) of the world of Atzilut - Emanation.(7 pages)Read Online |
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INTRODUCTION TO THIRTY FOUR
This introduction explains the concept of the "birth" of Zeir Anpin of
Atzilut from the intellectual statures of Abba and Imma, and
the stages of "maturity" of Zeir Anpin, i.e. Yaakov and Yisrael.(19 pages)Read Online |
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THIRTY FOUR
This chapter continues to explain the aspects Zeir Anpin of
Atzilut, the "birth" of Zeir Anpin,the various types of
investment of the intellect within the emotions of Zeir Anpin, and
the stages of "maturity" (Katnut and Gadlut) of Zeir Anpin,
which are called Yaakov and Yisrael.(16 pages)Read Online |
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THIRTY FIVE
Continued explanations of the aspects of Yaakov and Yisrael, and
the benefit of the middle line over the right and left lines.(12 pages)Read Online |
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THIRTY SIX
This chapter explains the aspect of "The offspring of Yaakov"which is the aspect of Yosef, or Yesod of Zeir
Anpin of the world of Atzilut - Emanation.(17 pages)Read Online |
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THIRTY SEVEN
In this chapter the "Voice of Yaakov" (the "voice
that is heard in speech", and the "inner unheard voice") is explained,
as well as the unifications (Yichudim) of Zeir Anpin
and Nukvah (i.e. Yisrael, Yaakov, Leah and Rachel).(10 pages)Read Online |
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THIRTY EIGHT
This chapter begins to explain the difference between Vessels (Kelim)
and Garments (Levushim), and explains the source of the
Letters (Otiot) and their function.(7 pages)Read Online |
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